The LEED rating system for buildings awards points for energy-saving features, but it has been criticized in the past.

"A lot of LEED is given for bogus stuff. The costs of making a green building are ''enormous,'' Gehry said."They don’t pay back in your lifetime.."

In some countries, making the average family home more energy efficient can cost as much as $12,000. With CO2 emissions being cited as the main cause of global warming, the costs of making buildings more eco-friendly aren’t paid back in our lifetime; not all costs, after all, are financial, the article noted.